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by: WeatherDem

06/30/09 @ 03:15:27 PM MDT


Two articles from the ProgressNow Daily News Digest caught my eye this morning. The first is about additional clean energy development in Colorado.  The other puts violent speech from a Con politician on display.

I'll start with the clean energy story: potential development in the San Luis Valley that is being looked at by Interior Secretary Ken Salazar as part of an effort to build solar power infrastructure on public space in six Western states.  Unlike Rep. John Salazar, who would rather condemn the planet to thousands of years of harsh climate than stand up to oil and gas corporations, Sec. Salazar's Interior Dept. obviously understands the dangers involved.  And while Sec. Salazar might have a level of political cover that Rep. Salazar doesn't enjoy, one need only look at Rep. Markey's principled vote and courageous stand against Colorado's most extreme politicians to understand that that political cover isn't necessary to act.

Some details:

Salazar said he has signed an order setting aside more than 1,000 square miles of public land for two years of study and environmental reviews to determine where solar power stations should be built.

Parcels include 10,000 acres that sit on the east side of U.S. 285 between Antonito and the state line and just under 6,000 acres west of Romeo. A fourth parcel covers 4,000 acres northeast of the intersection of U.S. 160 and Colorado 150.

Salazar vowed to have 13 ''commercial-scale'' solar projects under construction by the end of 2010 on lands that have what he called excellent solar energy potential and limited conflicts with wildlife, other natural resources and land users. He set a goal for the projects to produce a total of 100,000 megawatts of solar electricity.

More below.

WeatherDem :: Sec. Salazar and Solar; More Violent Speech From a CO Con
It's not clear from this article what kind of solar technology would be employed at the sites.  Most people think of solar photovoltaics (PV) when they read about solar power.  Other technologies, which I and other SquareStaters have discussed before, would provide much more bang for the buck.  I would love to see Concentrating Solar Power, CSP, (especially Concentrating Solar Thermal, CST) facilities built up across the West.  A simple way to describe them is parabolic mirrors act to concentrate solar energy on a tube filled with a fluid.  As the fluid is heated, it is used as a heat source in a power generation system.  Two clear advantages of these systems emerge: the efficiency of this system is greater than for PV and the energy collected during the day can be more easily stored during the night - providing a boost to solar baseload.

Regardless, an additional 100,000MW of clean energy is indeed very good news.

----------------------

Okay, onto the violent speech news.  Rep. Laura Bradford, who surprisingly beat Rep. Bernie Beuscher in last year's election, put her wingnuttery on full display in a discussion about the extractive regulations that went into effect in April (the Colorado Oil and Gas Conservation Commission (COGCC) rules).  Check out the language she chose to use [emphasis mine]:

"Our stance is the erosion of private property rights has gotten to the point that the pitchforks are about to come out here," Bradford said.

Really?  Really, Rep. Bradford?  Pitchforks are about to come out?  Cons are so intent on supposedly protecting rights, they forget that along with rights come responsibilities.  Her comment is clearly designed to portray how horribly angry landowners are about the regulations.  But who carries pitchforks around because of their mindless anger?  Rioters and mobs.  Is every landowner on the Western Slope planning on joining a riot with a pitchfork anytime soon?  They (some of them) might be frustrated, but the rules clearly impact large-scale gas and oil drilling operations - not every West Slope Coloradan.

What responsibilities does Rep. Bradford have in this situation?  She has the responsibility to clearly explain the effects of the regulations to her constituents and neighbors.  She could have spent her time and energy encouraging her constituents to call and write to other legislators and the Governor.  Instead, by using the language she has, she is inciting their anger - trying to direct it so she can benefit from it politically.  That's immoral and it's dangerous.  She has the responsibility to work with her colleagues on this legislation.  Ultimatums and poorly-veiled threats of violence in the media aren't the actions of a responsible person, regardless of how well she works with other Representatives.

She proceeded to throw out a series of unfounded claims regarding Division of Wildlife powers and the state's reputation and image.  What I wouldn't give to have more "journalists" ask for substantiation of wild-eyed claims.  The language that is passed through the media today is a sad commentary on the state of that media. We know the Cons would have a one-week hissy-fit if a Democratic Representative mentioned pitchforks in a statement about their constituents' anger.  I guess it all boils down to that values stuff...

Cross-posted at WeatherDem - the blog.

Tags: , , , , , , , , , , , (All Tags)
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IOKIYAAR (0.00 / 0)
As far as much of the traditional media is concerned.  It's too bad Bernie's not in the Legislature, but it's pretty nice to see him at SOS.

100,000 MW Solar Generation (0.00 / 0)
That represents about 2.5%  of 2006 US power generation and about 1/8 of all US nuclear power produced, according to the US Statistical Abstract for 2009.


There is currently (4.00 / 1)
1000MW of solar PV and 600MW of CSP generating power in the U.S.

A series of announcements in the last year by companies point to 6000 additional MW of CSP plants in the southwest.

7600MW plus 100000MW is a pretty impressive number.  The 100000MW number alone means that 15 to 25 million households could be powered by clean energy, greatly reducing the amount of power needed from dirty energy sources.

I love it!

A Responsible Plan for Iraq: endorsed by Jared Polis


[ Parent ]
Solar power and Xcel (4.00 / 1)
Does Xcel energy own the transmission lines and the land beneath them?  IF they do, what stops them from putting solar panels on that same land and feeding it into the grid from that location?

They Have the Right of Way for Transmission But Not Necessarily the Right to the Ground (4.00 / 1)
Good question.  In most states the land beneath the power lines remains with the land holder who is not necessarily the owner of the power line.  So, a farmer may grow crops or graze livestock beneath the high voltage line.

I don't know if this is the case in Colorado.


[ Parent ]
They Have the Right of Way for Transmission But Not Necessarily the Right to the Ground (0.00 / 0)
Good question.  In most states the land beneath the power lines remains with the land holder who is not necessarily the owner of the power line.  So, a farmer may grow crops or graze livestock beneath the high voltage line.

I don't know if this is the case in Colorado.


[ Parent ]
An Issue with CST (4.00 / 1)
When considering any thermal power generation scheme in a low-water area, such as Colorado, one must keep in mind the amount of water needed to cool the used steam to a temperature where it can be reheated in in the boiler.  CST systems, from what I can see, have the same problem as any boiler-turbine-generator system, from nuclear to fossil.  
  1. Water is heated by some means to the point where it becomes steam
  2. Steam passes through a turbine or set of turbines where it nearly condenses to water converting as much heat as possible in the steam to rotating mechanical motion which turns a generator and produces electricity
  3. The remaining heat from the steam as it passes from the turbine(s) to the boiler may be used to help preheat combustion gasses or the heating materials from the heat source.
  4. Finally, the water is cooled to a point where it can be reused and new feedwater is added as needed.

This last step requires a form of cooling, which is often the cooling towers we associate with power plants of all kinds, especially nuclear power plants. Cooling towers require a good deal of water which evaporates into the atmosphere. That is why one sees power plants often located next to a river or lake or artificial lake, and it typically represents 60% of the water used in a steam generating station. For example, a 500 MW station will use about 6415 GPM water in cooling tower evaporation. See POWER PLANT WATER USAGE AND LOSS STUDY, DOE, NETL, August, 2005, page 85

Unless I am mistaken, such a volume of water would be required of a similar size CST generating system unless the means of turning the turbine is not a steam generator or boiler.

An advantage of PV Solar is that the water needed for operation is essentially zero if the panels aren't cleaned during the life of the station.  The production of the PV cells may use water in their production process, but presumably it is a lot less than needed in the operation of a steam system.  

This is not to say that CST is the wrong technology, but it is important to consider factors such as the amount of cooling water needed for the technology and the source of such water.


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